Large Animal Necropsy
Large Animal Necropsy - Related Videos
06:56
Rabies Necropsy Techniques in Large and Small Animals
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Cited by 2 •
2019
The goal of this protocol is to demonstrate safe necropsy techniques in small and large animals to obtain satisfactory tissue samples for rabies testing.
21:15
Diagnostic Necropsy and Tissue Harvest
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2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN Many animal experiments rely on final data collection time points that are gathered from the harvesting and testing of organs and tissues. The use of appropriate methods for the collection of organs and tissues can impact the quality of the samples and the analysis of the data that is gleaned for the testing of the tissues. The method of euthanasia of the animal can also impact the quality of...
09:13
Diagnostic Necropsy and Selected Tissue and Sample Collection in Rats and Mice
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Cited by 49 •
2011
This article describes the procedures for conducting a basic postmortem examination of a mouse or rat, and the collection of basic organs, as well as more challenging sample types from for histological, microbiological, and PCR evaluation.
26:43
Computer-Generated Animal Model Stimuli
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Cited by 8 •
2007
Computer-generated stimuli using the Jacky dragon as a model.
07:57
Necropsy-based Wild Fish Health Assessment
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Cited by 21 •
2018
The health of wild fishes can be used as an indicator of aquatic ecosystem health. Necropsy-based fish health assessments provide documentation of visible lesions or abnormalities, data used to calculate condition indices as well as the opportunity to collect tissues for microscopic evaluation, gene expression and other more in-depth analyses.
FAQs
Gross lesions show where tissue damage is occurring, but they do not by themselves establish whether a pathogen caused it or how the host responded. Pairing lesion distribution with pathogen detection and immunologic analysis allows investigators to relate tissue injury to infection and host defense. This comparison can clarify disease progression and mechanisms of tissue damage.
Targeted sampling links a specific abnormality to an appropriate downstream analysis. Tissues selected during examination may be submitted for histopathology, microbiology, molecular testing, or immunologic analysis of host responses. Using complementary sample types helps distinguish structural injury, infectious evidence, and immune activity rather than relying on one result when investigating disease processes.
Host inflammatory findings provide context for interpreting pathogen detection and tissue damage. They can show how the animal’s immune system is responding within the disease process, while gross and microscopic tissue changes show the anatomic consequences. Considering these observations together helps researchers evaluate progression and understand how infection and host responses contribute to injury.
A systematic examination creates a structured record linking external findings, organ changes, tissue abnormalities, and targeted laboratory results. That organization helps investigators evaluate possible disease processes rather than focusing on an isolated lesion. In infection studies, the resulting evidence can support diagnosis and make comparisons among cases, animals, or outbreak investigations more informative.
The approach is particularly valuable when investigators need to clarify an animal death, investigate an outbreak, or assess a possible emerging infectious threat. Findings can also inform animal health management in livestock and wildlife. Because the examination combines tissue-level observations with laboratory analyses, it provides evidence that connects individual cases with broader disease patterns.
Changes documented in organs and tissues can be considered alongside pathogen detection and host inflammatory or other immunologic responses. This integrated evidence helps assess whether a vaccine or treatment is associated with altered disease processes, tissue damage, or infection-related findings. The approach contributes to intervention evaluation while preserving a link to measurable biological outcomes.